Emerson 67C Datový list Strana 1

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Smart Bleed™ Airset
An airset that is smart enough to know when
fail-safe conditions must be executed
www.sherregulators.com
Type 67CFR with Smart Bleed Mounted to Type 667 Actuator
Ensuring Actuator Failure Mode
Any airset piped directly to an actuator or to devices that
consume air intermittently can lead to a problem of trapping
pressure in the actuator if a xed bleed is not installed. The
trapped pressure locks the actuator in last position. Since
regulators respond to changes in downstream pressure, not
inlet pressure, the regulator remains locked up when supply
pressure is lost. A means to exhaust the trapped pressure
is required.
Optimized Performance
Fisher
®
Smart Bleed Airset allows downstream pressure in an
actuator or other instrument to exhaust if supply pressure
is lost. In turn allowing the actuator to fail in the desired
Lower Operating Costs
position. The use of the Smart Bleed eliminates the need for a
xed bleed, and should be used when supplying air to a dead-
end system.
Lower operating costs
The cost to power pneumatic instruments in chemical,
hydrocarbon and process industries is continuing to increase,
and along with it the need to minimize leakage wherever
possible. Intensive laboratory testing shows the Type 67CFR
internal relief valve has tight shutoff. Combined with the
benets of the Smart Bleed, continuous steady state air
consumption is eliminated. Plant resources are conserved
and the cost to power pneumatic and digital instruments
is reduced.
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Shrnutí obsahu

Strany 1 - Smart Bleed™ Airset

Smart Bleed™ AirsetAn airset that is smart enough to know when fail-safe conditions must be executedwww.sherregulators.comType 67CFR with Smart Ble

Strany 2 - Best in Class Design

Best in Class DesignBest in class designThe Smart Bleed Airset incorporates the use of a differential check valve between the inlet and outlet pressur

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